Oskar Karlweis

as Lotzi

as Schmidtchen

as Willy Schmidt

as Benjamin Golder

as Uncle Besso

as L. C. Moyzisch

as Mr. Kovacs

as Otto Sonndorfer

as Teddy Langhammer

as Franz Waldmüller

as Peter Schlemm

as Leo, der Schornsteinfeger

as Heinz Schaller

as Werner Radke

as Doktor Jura

as Karl

as Der Organist

as Turi Weidinger, Tenor

as Wolfgang Amadeus Mozart

as Solly Friedländer

as Fred Halton

as Kurt

as Flooch - Impressario

as Nicky Mahler - Librettist

as Wedelski, Oberleutnant a.D.